BlackBerry India managing director, Sunil Dutt, has quit just over a year after he first took up the job amid reports he was planning to leave after the recent local launch of Z10.

Executive vice president for global sales, Rick Costanzo, will steer the ship until a successor is found. In a statement supplied to ZDNet, the smartphone vendor's India and Greater China director corporate communications, Varghese Thomas, confirmed on Friday that Dutt "left his position...with immediate effect".

"India is an extremely important market for BlackBerry and our aim is to continue to build on our recent momentum with the launch of BlackBerry 10 (BB10)," Thomas said. "We wish Sunil well for the future."

In an interview with The Hindu published on March 7, Dutt said the exceptional sales from the recent product launch prompted an increase of internal projections. "Our own internal forecast has been beefed up for BB10 devices by about 40 percent after seeing the response in other markets. By putting a sales target number, I would be limiting my team in India," he was quoted by the paper. "This is a gamechanger for BlackBerry and also for the industry. We are already running out of stock."

BlackBerry also went all-in on the launch, he said, employing its first brand ambassador and a go-to-market strategy designed specifically for BB10.

Thomas noted the interview with Dutt took place three weeks ago.

His departure comes at a tense time for the struggling mobile device manufacturer, which was recently reported to have handed over PIN codes for handsets shipped to India. For the past years, the Canadian phonemaker had been pressured by the Indian government to enable the monitoring of communication between BlackBerry devices as its encryption was deemed "too secure". The company finally relented and built BlackBerry servers in Mumbai in 2011.